Audi A6 C6 3.0tdi Allroad Is it worth to buy a car with broken engine?

In this episode I will answer the question: Is it worth to buy a car with broken engine, and how much works is needed. I invite you to watch the movie!
I use GoPro 9 to record the movie, the audio is very low quality, and the sharpness very weak in some moments. I need to learn how to use this camera, or it's just very poor product:)